Nick Flynn, Andre Dubus III, Chuck Hogan, and James Parker write responses to the events of April 15, 2013.

James Parker: ReactionMy first reaction surprised me: a surge of utterly tribal fury. I’m not a Bostonian; I’m not even an American. But I’ve been in this city for fifteen years and how dare they?

Andre Dubus III: RunIt was one of those days when all the good and important things come into focus.

Chuck Hogan: The Finish LineThe first shock was the images of chaos on the televisions over the bar. Hundreds of people running away from the finish line, not toward it. A legend across the bottom of the screen: “Explosions Disrupt Boston Marathon.“